SafeKeepVault

Your Hardware. Your Keys. Your Bitcoin.

Bitcoin hardware wallet · Zero cost of entry · Free & open-source

The Ultimate Bitcoin Cold Storage Device is Already on Your Desk.

SafeKeepVault is a custom-hardened Linux OS that flashes to any USB flash drive, instantly turning your existing PC into a powerful, secure Bitcoin cold storage device.

  • Complete Isolation: Bypasses your host OS and completely blocks network, disk, and peripheral access.
  • Encrypted Storage: Safely locks away your seed phrase in a dedicated, secure partition.
  • Air-Gapped Security: Gives you the peace of mind of a traditional hardware wallet, powered by your own laptop or desktop PC.

Repurpose, Don't Replace

If you have a PC and a 4GB flash drive, you already have everything you need. A full-size screen and keyboard make verifying transaction details effortless, and SafeKeepVault’s fifteen built-in tools handle every step of the self-custody workflow — from generating your first seed phrase to signing complex multisig transactions.

  • Universal Compatibility: Runs on any x86 laptop or desktop using a standard 4GB+ flash drive. Supports most internal webcams or external cameras.
  • Watch Wallet Integration: Works seamlessly with your favorite Bitcoin wallet software. Export your public key, build transactions in your coordinator, and sign them air-gapped using SafeKeepVault.
  • QR-Powered Unlock: Store your vault password as a QR code on your phone. Display it to the webcam on every boot to decrypt instantly — no long password to type.
SafeKeepVault OS — desktop interface showing the vault dashboard
The SafeKeepVault interface — fifteen tools, one air-gapped session, zero network exposure.

Comprehensive Utility.

  • The 15-Tool Suite Whether you're generating your first seed phrase, signing a complex transaction, or managing your backup recovery tools, SafeKeepVault gives you everything you need to keep your Bitcoin secure and offline.
  • Seamless Integration Pairs natively with wallets like Sparrow, Specter, Electrum, Nunchuk, and Blue Wallet. While your software wallet tracks balances and history and creates transactions, SafeKeepVault serves as your dedicated, offline signing device.
  • Temporary or Encrypted The choice is yours at every boot: operate in Temporary Mode, or save your seed phrase in the Encrypted Vault for permanent use.
  • Optical Transmission Eliminate the need for cables or sneakernet data swaps. Move unsigned and signed transactions via high-density QR codes, ensuring your hardware remains physically and digitally disconnected from the internet.
  • Open & Accessible SafeKeepVault is open-source, fully auditable, and free to use. There are no proprietary devices to purchase and no subscriptions to manage—simply flash a standard USB flash drive and secure your Bitcoin.
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